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Redline rear tyre choices

Discussion in 'VF Holden Commodore (2013 - ?)' started by JumboJim, Jul 3, 2017.

  1. KT11H

    KT11H Active Member

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    Beyern Rapp. 19"x 8.5" Front with 245/40R19 98Y, 19" x 9.5" Rear with 275/35R19 100Y in Contisport 6 tyres all round. Jax Tyre quoted $3736.00 Beyern Rapp Wheel.jpeg
     
  2. VF Redline

    VF Redline Member

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    So I had to replaced the Rears on my Redline after 27k, I got a pair of Continental SportContact 6 @ $978.
    Anyway they've put 43 psi in them, is that good or should I change to the tyre placard says? Or run something in between?
     
  3. VinnieLS3

    VinnieLS3 Member

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    Hey mate I got the exact same rear tyres for 20s but paid $800. Great tyre. However, I've got mine at 36psi... 43 seems a bit high.
     
  4. VF Redline

    VF Redline Member

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    The tyre placard says 3 people 36 + 36, 5 people 39 + 44
    So I think I'll drop it to 38.
     
  5. Mavericks Choice

    Mavericks Choice Active Member

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    Put 2 new Kumhos on my SSV 19 x 275 x 35 x 100 $550 fitted & balanced.
     
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  6. monstar

    monstar Donating Member

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    Good price which model, where from?
     
  7. Mavericks Choice

    Mavericks Choice Active Member

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    Just checked my receipt, price was keener than I thought!
    275/35 ZR19 KU39 x two tyres fitted & balanced for $514 from KarPro Tyres at Miranda NSW
     
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  8. Ron Burgundy

    Ron Burgundy Well-Known Member

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    What is the deal with 275/35R19 Bridgestone Turanza ER300. Any good ?
    They are fitted to the rims I bought and are RFT variant. How do they compare to Potenzas?
     

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    Last edited: Jan 21, 2018
  9. blackve76

    blackve76 Well-Known Member

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    More a everyday type tyre fitted to Calais my daily Ve berlina had them nothing great about them but nothing bad either, not as grippy as others to be honest never heard of them on a SS

    https://www.bridgestonetyres.com.au/turanza-er300
     
  10. panhead

    panhead Well-Known Member

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    They have a load rating of 96.

    Is that high enough for a 19 inch 275/35 tyre on the rear of a VF2 sedan?




    .
     
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  11. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Should be. Optional 20" have 95 front and 97 load rating for instance. 96 load carrying capacity is 710kg.
     

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    Last edited: Jan 22, 2018
  12. panhead

    panhead Well-Known Member

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    The reason I asked is because a while back dgp posted a photo of the tyre placard on his VF2 SSV Redline sedan and this is the photo.

    [​IMG]



    What does your tyre placard say?





    .
     
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  13. Ron Burgundy

    Ron Burgundy Well-Known Member

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    My car is standard SS with 18" wheels ... so not applicable
     

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  14. White Swan

    White Swan Member

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    Why isn't the correct load rating for tyres of those specs to suit a car of that weight applicable to you?

    When you change the spec that is the diameter, side wall height or width you need to provide tyres that are rated the same as other tyres used on other variants of the vehicle produced by the same manufacturer.

    Holden says a 275/35R19 tyre to suit a VF2 Commodore Sedan must have a load rating of 100 or higher.
     
    Last edited: Jan 22, 2018
  15. Pablito

    Pablito Member

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    Great price. Keep us posted on how they perform. I'm thinking of getting these next time.
     
  16. Ron Burgundy

    Ron Burgundy Well-Known Member

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    I assumed that @panhead asked about my placard as he thought my inquiry is about the factory fitted wheels. They are not in this case.
    The details of my stock tyre spec are different to Redline tyres.
    There is some flexibility here if you add the numbers and consider that Holden is also happy for 97 rating for the rear of Redline in 20" variant.
    Need to remember that numbers are about 'maximum load'. i.e. car weight, 5 passengers and full boot...
    I simply never get that scenario...
    80% of the time it is just me driving to work..
    Pretty sure I am safe with 96 on the rear given that they are rated at 710 per corner...
    97 rated 20s which were optional for my car are only 20kg difference from 96s...
    Negligible...
    In fact front optional 20" are only 95 load rating..
    My fronts are 98 rated....so even if I use the 'weakest link' logic I am good for at least 2840kg on those tyres...
    Very far from what they will ever have to endure :)
     
    Last edited: Jan 22, 2018
  17. Ron Burgundy

    Ron Burgundy Well-Known Member

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    More details for EVOKE, sv6 and SS
     

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  18. 426Cuda

    426Cuda SUBLIME!

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    I'm no tyre expert. But my tyre placards attest to what you're saying Ron.
    Redline:
    received_1329286717217681.jpeg

    Motorsport:
    received_1329286827217670.jpeg
    Maybe the stiffer side walls and effect of the air pressure in the 20" reduce the load rating required? I.e. a 95 in a 20", has the same load bearing capacity as a 98 in a 19"?
     
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  19. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Load rating is standard.

    Sooo for instance 96 load rating is always equivalent to 710kg per tyre. Each tyre also has a separate max load written on it i.e. Max load 710kg at xx psi ...

    We need to remember that car manufactures would have significant additional load ability on the tyres 'just in case' somebody crams five 100kg adults, fills all 500L of boot space and straps more **** on the roof racks whilst towing something :) Holden has to factor in worse case scenario, decide on the load and than some more just as an additional safety buffer to avoid potential lawsuits etc...

    Therefore .. In most situations load rating of at least 95 is sufficient for regular driving on VF...
     

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  20. 426Cuda

    426Cuda SUBLIME!

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    Ok. So, why is a 20" front 95 (690kg), while a 19" front is 98 (750kg)? Essentially on the same car? There must be a physical reason why tyres on smaller dia rims, are a higher load rating than same o/d tyres on larger dia rims? Just interested...
     

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